The short answer
Only with grid-operator consent. Measure grid voltage first and contact the power company if it's high.
Plain explanation
From the Sungrow manual for the SH-RT hybrid: Normally reconnects automatically when grid is back to normal. If it repeats: installer measures actual grid voltage. The rest of the checklist is below; work through it in order. Installer only: DC and AC work on a live PV system is dangerous, so owners should note the code and call their installer. Grid limits depend on your country, so check your national code and grid operator rules.
Steps from the source
- Normally reconnects automatically when grid is back to normal
- If it repeats: installer measures actual grid voltage
- If grid V is high → contact the power company
- Check protection parameters in iSolarCloud/LCD – change only with grid-operator consent
- Persists → Sungrow service
Source
Sungrow SH5.0-10RT User Manual Ver21, §10.1 Troubleshooting, §10.1 Troubleshooting, printed p134-138info-support.sungrowpower.com ↗
Where installers ask this
- Grid Overvoltage (r/nzsolar)
- reddit.com/r/solar/comments/1kiz1wq/
- reddit.com/r/SolarUK/comments/1vzaqrp/
General guidance based on the manufacturer's manual or the named source. Always follow the current manual for your exact model and your national code. DC and AC electrical work is for qualified installers only. Not affiliated with or endorsed by any brand named; trademarks belong to their owners.